Saw tooth



FIG. 1 is a perspective view of a saw tooth, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged detail view of Circled area in FIG. 1.

The broken lines shown in the drawings represent unclaimed environment only and form no part of the claimed design. 

CLAIM The ornamental design for a saw tooth, as shown and described. 